[Catalyst] Contributing code

[Sir Robert Burbridge]

Out of a discussion last week, I have some code to contribute (largely 
to Catalyst::Helper).

Two quick questions:

1)  I've never contributed code to a project outside my work before.  
How do I go about it?
2)  I've noticed many times in the CPAN modules I've looked through tend 
to be very sparsely commented (disregarding POD).  I tend to do a fair 
bit of inline comments (maybe about 1:2 comments:code).  Is there some 
reason I should keep comments sparse in contributed code?

Thanks!

-Sir